3-58.The Jones and McFarlin Company provides call center support for a number of electronics manufacturers. Customers call in to receive assistance from a live technician for the products they have purchased from a retailer. Jones and McFarlin are experimenting with a new automated system that attempts to provide answers to customer questions. One issue of importance is the time customers have to spend on the line to get their question answered. The company has collected a sample of calls using each system and recorded the following times in seconds: